I don't like the idea of the neomorphs, it's just way too easy to impregnate someone with them, they are born really fast and now we have backbursters, throatburters, seems like something we would see in a comic. They seemed like a deadlier weapons than the xenos, just breathing a small particule and you are dead, at least you can fight against facehuggers, the whole concept is way too overpowered. The concept of the deacon was better, but the neomorphs had a better design.
Comparing them to the xenos in ALIENS, they seemed faster and stronger, made the xenos look bad. Forget about this canon thing, fox will always find a way to make more content regardless of it making sense or not. If they decide to make more books/comics or games on AVP, it will be the normal xenos, Covenant might be the last time we see those neomorphs.